Insect trap



FIG. 1 is a perspective view showing our new design;

FIG. 2 is front view thereof;

FIG. 3 is a left side view thereof, the right side being a mirror image of the left side; and,

FIG. 4 is a top view thereof, the bottom being a mirror image of the top.

The details shown in broken lines form no part of the claimed design. 

The ornamental design for an insect trap, as shown and described. 